Add 28/48 and 20/70
28/48 + 20/70 is 73/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 70 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 48 × 35 = 1680,
28/48 = 28 × 35/48 × 35 = 980/1680 - Likewise, for the 2nd fraction, since 70 × 24 = 1680,
20/70 = 20 × 24/70 × 24 = 480/1680 - Add the two like fractions:
980/1680 + 480/1680 = 980 + 480/1680 = 1460/1680 - 1460/1680 simplified gives 73/84
- So, 28/48 + 20/70 = 73/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/48+20/70 28/48+40/70 28/96+20/70 84/48+20/70 28/48+60/70